Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 6 15.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/17/2017   22:25:02   (  70.47,-159.34) 06/17/2017   22:23:51  (  70.52,-160.29)   35.63                71
 06/17/2017   23:14:37   ( -70.08,   7.73) 06/17/2017   23:14:26  ( -70.08,   7.72)    0.78                11
 06/18/2017   00:04:05   (  69.93, 175.16) 06/18/2017   00:05:10  (  69.95, 175.23)    3.33                65
 06/20/2017   14:41:38   (  70.14, -43.94) 06/20/2017   14:40:39  (  70.16, -43.95)    2.22                59
 06/20/2017   15:31:08   ( -70.03, 123.53) 06/20/2017   15:31:20  ( -70.03, 123.57)    1.36                12
 06/20/2017   16:20:45   (  69.37, -69.72) 06/20/2017   16:21:54  (  69.37, -68.15)   61.46                69
 06/23/2017   06:58:08   (  70.14,  71.93) 06/23/2017   06:57:33  (  70.12,  71.89)    2.25                35
 06/23/2017   07:47:37   ( -70.03,-120.59) 06/23/2017   07:48:14  ( -70.04,-120.67)    3.35                37
 06/25/2017   22:25:02   ( -70.67,  20.95) 06/25/2017   22:23:52  ( -70.73,  19.39)   57.77                70
 06/25/2017   23:14:38   (  70.07,-172.28) 06/25/2017   23:14:26  (  70.08,-172.28)    1.51                12
 06/26/2017   00:04:08   ( -69.97,  -4.80) 06/26/2017   00:05:07  ( -69.95,  -4.75)    2.78                59
 06/28/2017   14:41:41   ( -70.17, 136.10) 06/28/2017   14:40:36  ( -70.17, 136.06)    1.48                65
 06/28/2017   15:31:08   (  70.06, -56.42) 06/28/2017   15:31:20  (  70.05, -56.45)    1.67                12
 06/28/2017   16:20:45   ( -69.57, 110.54) 06/28/2017   16:21:55  ( -69.59, 111.55)   39.15                70